This moment is the climax for several reasons:
* It marks the turning point of the story: Before this, Cinderella's fate is uncertain, and her hopes seem dashed. The slipper fitting signifies a shift in her fortune, and the beginning of her happily ever after.
* It creates maximum tension: The story has built up suspense, with the audience eagerly waiting to see if Cinderella will be recognized. The fitting of the slipper is a dramatic reveal that satisfies this tension.
* It leads directly to the resolution: The climax sets in motion the events that will lead to Cinderella's marriage to the Prince, her escape from her abusive home, and her happy ending.
Therefore, the moment the slipper fits perfectly is the crucial turning point in the story and marks the climax of Cinderella's journey.